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Compact Fluorescent Light Bulbs (CFLs)


If every American home replaced just one light bulb with an ENERGY STAR qualified bulb, we would save enough energy to light more than 3 million homes for a year, more than $600 million in annual energy costs, and prevent greenhouse gases equivalent to the emissions of more than 800,000 cars.

Earning the Government's ENERGY STAR

ENERGY STAR qualified CFLs:

  • ENERGY STAR qualified bulbs use about 75 percent less energy than standard incandescent bulbs and last up to 10 times longer.

  • Save about $30 or more in electricity costs over each bulb's lifetime.

  • Produce about 75 percent less heat, so they're safer to operate and can cut energy cost associated with home cooling.

  • Are available in different sizes and shapes to fit in almost any fixture, for indoors and outdoors.

How to Choose and Where to Use CFLs:

ENERGY STAR qualified CFLs provide the greatest savings in fixtures that are on for a substantial amount of time each day. At a minimum, ENERGY STAR recommends installing qualified CFLs in fixtures that are used at least 15 minutes at a time or several hours per day. The best fixtures to use qualified CFLs in are usually found in the following areas of your home:

  • family and living rooms
  • kitchen
  • dining room
  • bedrooms
  • outdoors

How to Choose the Right Light:

Matching the right CFL to the right kind of fixture helps ensure that it will perform properly and last a long time.

For example:

  • CFLs perform best in open fixtures that allow airflow, such as table and floor lamps, wall sconces, pendants, and outdoor fixtures.

  • For recessed fixtures, it is better to use a reflector CFL than a spiral CFL since the design of the reflector evenly distributes the light down to your task area.

  • If a light fixture is connected to a dimmer or three-way socket fixture, you'll need to use a special ENERGY STAR qualified CFL designed to work in these applications. Make sure to look for CFLs that specify use with dimmers or three-way fixtures.

  • Choose a qualified CFL that offers a shade of white light that works best for you. For example, while most CFLs provide warm or soft white light for your home, you could choose a cooler color for task lighting.

  • To choose the ENERGY STAR qualified CFL with the right amount of light, find a qualified CFL that is labeled as equivalent to the incandescent bulb your are replacing. Light bulb manufacturers include this information right on the product packaging to make it easy for consumers to choose the equivalent bulb. Common terms include "Soft White 60" or "60 Watt Replacement."


You should also check the lumen rating to find the right CFL. The higher the lumen rating, the greater the light output. Consult the following chart to determine what CFL wattage is best to replace your incandescent light bulb:

light output equicalency chart

CFL Disposal - Closing the loop:

CFLs contain a small amount of mercury and should be disposed of properly, ideally recycled. More information regarding recycling used CFLs and properly cleaning up broken CFLs are also featured in this website, use the links to the right to learn more.

Source: www.epa.gov

Going Green Tips

Compact Fluorescent Light Bulbs
Everyone is talking about "Green Building" and ways to conserve energy, save money and protect our planet...find out how you can help.